body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f4f4f9;
}

h1 {
    text-align: center;
    color: #333;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background-color: white;
}

th, td {
    padding: 10px;
    border: 1px solid #ddd;
    text-align: left;
}

th {
    background-color: #e9ecef;
}

button {
    display: block;
    margin: 20px auto;
    padding: 10px 20px;
    background-color: #28a745;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background-color: #218838;
}